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Finding the Fourth Proportional to 338,996.25, 505,499.30 and 335,953.58

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Solution

The fourth proportional to 338,996.25, 505,499.30 and 335,953.58 is: 500,962.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,996.25 : 505,499.30 = 335,953.58 : x
  2. Step 2: Convert to fraction form
    338,996.25/505,499.30 = 335,953.58/x
  3. Step 3: Cross multiply
    338,996.25x = 505,499.30 × 335,953.58
  4. Step 4: Simplify right side
    338,996.25x = 169,824,297,842.73
  5. Step 5: Solve for x
    x = 169,824,297,842.73/338,996.25
  6. Step 6: Final answer
    x = 500,962.18

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.